Shimadzu Scientific US Webstore - Regulator for GC (He, Ar, N2)
Amazon.com: Arc Union Brass and Rubber Fit Dual Mylar and Helium Latex Balloon Filler Valve Tank Regulator - CGA-580 Air Flow Inflator Mostly for Helium, Argon and Nitrogen Valve Tank with 0-3000
Harris 25GX Single Stage Ar, N2, He Regulator 25GX-145-580
HARRIS, Two Stage, CGA 580 Inlet, Specialty Gas Regulator - 46Z502|KH1027 - Grainger
AWLOLWA Balloon Helium Tank Regulator Filler Valve for Balloons with Gauge Pkg/1 - Amazon.com